Gas-lamp



( Model.)

L. A. COOPER.

GAS LAMP. No. 487,065. Patented Nov. 29, 1892.

279.2 Z, 777/ 3 HF I Z k F I T Z: 1 I

P UNITED STATES.

PATENT OFFICE;

LESLIE A. COOPER, OF SPRINGFIELD, MASSACHUSETTS.

GAS-LAM P.

SPECIFICATION forming part of Letters Patent No. 487,065, dated November 29, 1892.

Application filed June 3, 1891. Serial No. 394.991- (No model.)

after explained.

The invention consists in the construction and combination of the parts, all substantially as will hereinafter more fully appear, and be set forth in the claims.

In the accompanying drawings, Figure l is a side elevation of the valve and operatinglever shown as in working application on a gas-lamp. Fig. 2 is a plan'view of the'valve. Fig. 3 is a section taken on line 3 3, Fig. 2. Fig. 4 is a detail view of the plug or key of the valve. Figs. 5, 6, and 7 are sectional views taken through the ways of the valve, the plug being shown as moved into the different positions which it may be caused to occupy. Fig. 8 is a view of a part in detail to be hereinafter referred to.

Proceeding now to describe the valve, A

represents the body thereof, of T form, hav-' ing the inlet-way a, the outlet-way b at one side, and another outlet-way d at the other side.

B represents the plug or key of the valve, passing laterally and intermediately through the close-fitting opening 0 therefor in the valve-body. The valve-plug B has the opening f diametrically through the intermediate portion thereof, and the inlet-way a at and about the upper side of the opening a, through which the valve-plug passes, is widened or extended, as at e, so that no matter how far around the plug may be turned communication is always open from the inlet-way a to the opening fin the plug. The inner area or section of the outlet-way b is contracted, as at b, so that its width is more or less the same as that of the opening f. The inner area or throat of the other outlet-way d has therein the short Wall or partition h, (which extends and forms a part of the wall forthe opening 0,) whereby the outlet-way dis as to its inner portion constituted by the sub passages d and d substantiallyas shown. The passage d is susceptible of being contracted in a greater or less degree, as desired, by means of the screw i or other equivalent device, which passes through the body of the valve to lie by its inner end portion more or less across and to obstruct the said passage d.

The plug B is formed tapered and ground to fit in the' lateral opening 0 through the valve-body and at its smaller end is necked down and threaded, as at j, such latter portion receiving the washer is and confining-nut It. The other end of the said valve-plug is squared, as at Z, receiving thereon the ratchet-wheel m, beyond which the plug is extended to form the journal at for the pawl-carrying lever p, which is fitted for a support and swinging movement on said journal. The pawl q, pivotally mounted on the lever 11, is constrained in engagement with the ratchet- Wheel by the spring 0", so that when the lever is swung in the one diretion-here downwardly-it will force the ratchet and valveplug around in the direction indicated by the arrow 10 in Fig. 5 to an extent corresponding to the length of the swing of the lever, and of course when the lever is returned to its normal position the pawl will slip back over the ratchet tooth or teeth to be next properly limited.

Now, particularly noting Figs. 5, 6, and 7, it will be seen, first, that the valve-plug may be turned so that communication may be had through it from the inlet-way a to the outletway I), or, second, from the inlet-way a through the valve-plug and the outlet 01 by way of the -p ssag o third, om the inl t-Weia through the valve-plug and the outlet at by way of the other supplemental passage d accordingly as the plug is properly turned to secure either of the courses set forth.

The utility of a valve of the description above given will probably be more readily-apparent on explaining and setting forth a manner of its use in connection with a gas-lamp of the regenerative class, sufficient of the coristruction of which lamp is given in Fig. 1, in which D p n s the b neh holoeed with n the casing and glass globe to at the lower end of thelarnp, the burner coinprisingthe feature of an annular opening 00, to which the gas is suppl ed i ee e a oe by the pip "w rep esents an nnu a pe ot he o-mouth shape supported in proximity to the ani iile op hi g w nd upon h ch theses i n= Pihee n out h c it home hen ign ted! z' rep es n noth p p lead ng downei't ly to erm n te i t e jet o ith n the e-lehe and n p imi y to t e p rt and he ease-age Th jet e e oonthaeted, open ng as more clea ly ep s nted in F g! v so tha the ex t o se h eet is but slight-t The pipe 2/ and the pipe hey ho eoinih iieatioh h on h t e o her; hh the p ne y th ex e s on or hreheh y, which leads t e h huh eetien wi h theway oi o the velveheey A, Whi th o h pipe has the ti -nation r hrane Whio is. oupl to he valve-body t he ontlet wey h thereof- G represents the primary see-supply pirat the end o h h the a ve-inle ei eonneet d- No i is QQ ii'Q ,.Q Q 5 W ere th l mp is not. qu ed. to gi fo thvlight or ill minat oii, to a a ma l flame u'hihg t theie it so th h h he supp y i see for il uminat n s t ned o to the bur-her t may h reedi y-i h ed,net e essi ating t eopeh he o the globe f r h applica on f a lighte he oh- Aeeih, in is f rm amp it s des ahle at t e m o i h ing p to let-on n y abou a ha f o so e ueh po tion e -the h ad see for the eas ns th he mor perfeetcom ust n o he f ll supply of gas anhe a until a s ffio ent amou t of hea has been generated at and about the. burner, and, mo ov in cold eather i ie necessa y to heat he l ss l b hu e eduaiiy to a oid breakag h r of, a d hu i wi l be apparen theta-Wh n h e v nhigie in. the p sition ehowh h F g- 5 there w l h e feseepniy only th oug th pipe a burn as eojetet n. The on de ir n to light on thele er- 1 s downw rtlly u g by mean o t e hain or whatever appliance is provided to, bring the val e-hing i he po it on shown inE e 6 hen a ra f he. ull gas-supply may pas h g the valve y ofth ehstruot d pa ag d an h o gh the p p y to the bu n ill be apparent rom the illustration given that the partial gas supply to the jet is out oft; and now, the conditions for perfect combustion having been established, the valve-plug-operating lever is aga n veeip o a e hen the l-gas-supply to the burner is had by way of the sub-passage d and outlet 01 of the valve to and through the said pipe y; and, again, it will be noted on now securing afurther rotational movement of the valve-plug in the same direction that before the way fin the valveplug can be carried entirely out of coincideuce with the full-supply valve-passage d to shut the gas off from exit therethrough t e Way f in the valve=plug Will have portions of the area of its orifice open to both the way Z) and the way 61 so that before the burner-flame is extinguished the little light at the j time termed th xpilet-f-light) will be relie ht di In he turningef the valven igifh h the position shown inE-igt 5 to tha shown in 6 he way f of the alve-Plu will have portions of the area Qfii'SQI'ifiQQB Jet,

. What I claim, and desire toseoure by Letters Patehtt e ,1- Th oombination, with a .gasilamp havinea main urner and adjacent thereto a Secondary humor jet, of a va ve having an inlet-way and difi'e ehtly-direet d outle Ways 2 d, he letter of which comprises enhpass es tahd the rotatable Valvephig h ing i Why, the said valve plug way and the ys of the valve-bo yheihg -eo o med an rela ely ar nged t at there. willheat i en po i io s o the plug a communication between he nlet and one or theother of the sai three xi passages and upon the full open ng of a y one o the said exit-passages th il i lg of" 120th of theotherexit-passages, the inlet-pipe coupled to the inlet-Way of the valve, a pip n communication, with both of said sub-pa ages d d? and terminating or aas-elel eryat the main burner, and a pipe leading from the other exit-way b of the. valve to the secondary burner, substantially as and or the p rposes. se forth.

' 2- The combination, with a gaselam havs cket, and t o adjacent ou lee y leading from another side of the socket, and sa my and elosing portions of the plug, to-

ways, so relatively arranged thatcommunication may-be had between the inlet and the one side outlet 17, between the inlet and partially with said outlet 12 and one of the paired passages cl dior between the inlet and solely for gas-delivery adjacent the main burner, with either of the adjacent paired outletsubstantially as and for the purposes set passages d d the gas-inlet pipe coupled to forth.

the valve-inlet, a pipe in communication with LESLIE A. COOPER. 5 said way b and leading to the jet or secondary Witnesses:

burner, and a pipe in communication with WM. S. BELLOWS,

both of said passages d d and terminating T. F. DENEEN. 

